>> "Eric" == Eric Abrahamsen <eric@ericabrahamsen.net> writes:

   > Eric S Fraga <e.fraga@ucl.ac.uk> writes:
   >> On Saturday,  3 Jan 2015 at 11:22, Uwe Brauer wrote:
>> How can I run this splitting on the INBOX for all messages even read
>> ones?
   >> 
   >> Possibly:
   >> 
   >> ,----[ C-h v nnimap-unsplittable-articles RET ]
   >> | nnimap-unsplittable-articles is a variable defined in `nnimap.el'.
   >> | Its value is (%Deleted %Seen)
   >> | 
   >> | Documentation:
   >> | Articles with the flags in the list will not be considered when splitting.
   >> | 
   >> | This is a Gnus server variable.  See Info node `(gnus)Select Methods'.
   >> | 
   >> | [back]
   >> `----

   > Yup, this is what I've done in the past and it works a treat. Just set
   > it to (%Deleted) temporarily, then refresh.

Thanks for pointing this variable out to me, I see that it is not
customize-able via customize, so I have to use:


(setq nnimap-unsplittable-articles '(%Deleted))

By refresh you mean 
gnus-group-get-new-news??